On Fri, 2018-10-19 at 10:38 -0400, Tony Battersby wrote: > Incidentally, I have been using my own home-grown target-mode SCSI > system for the past 16 years, but now I am starting to look into > switching to SCST. I was just reading about their "SGV cache": > > http://scst.sourceforge.net/scst_pg.html > > It looks like it serves a similar purpose to what you are trying to > accomplish with recycling the indirect I/O buffers between different > requests. Perhaps you can borrow some inspiration from them (or even > some code).
Although the current SCST SGV cache implementation is more complicated than necessary, I agree that it would be useful to have such a cache implementation in the Linux kernel. The NVMe target driver and the SCSI target core would also benefit from caching SGV allocations. Bart.
